Camp chef's unique grill systems cook better than ordinary grills. using infrared technology, internal heat-diffuser plates improve cooking quality, eliminate flare-ups and instantly vaporize drippings. a pre-seaseoned cast iron grilling surface holds and distributes heat consistently, cooking your meat more evenly. the bb30l covers one burner this system covers one burner on the camp chef ex60, db60, yk60, ex170, ex280, sb30d stoves.